Sundance SMT784 - Manual (Page 12)

User Manual SMT784 Page 12 of 31 Last Edited: 19/03/2009 14:12:00
5.2 SLB Connector
The SLB connector is the interface used to connect the SMT700 carrier board to the
SMT384 mezzanine module. For a map-out of SLB pin connections specific to this
system, please refer to the
SMT384 user guide .
This connector is mounted on the reverse side of the board. The SMT784 occupies
two slots in a rack with the carrier portion of the system residing on the central
card guides (i.e. there will be a whole slot width for the FPGA, memory, etc. - and
another slot with the SMT384 mezzanine.)
5.3 DDR2
Four devices are used to implement this memory.
A 220MHz 64-bit data bus is used to transfer data at over 3.5Gbyte/s. (Xilinx
provides performances of a DDR2 interface as being: 200MHz for a -1 part, 267MHz
for a -2 part and 333MHz for a -3 part.) Future releases of the firmware will allow
for Host application access of the memory provided.
5.4 Front Panel Fibre Optic Modules
Two FPGA serial interfaces are presented here using Stratos Lightwave 568-LxK-
LT12x modules.
These interfaces support 2.5Gb/s operation.
Note that only one device is fitted as standard due to the fact that the second
module fits on the reverse of the SMT700 PCB. Not all variations of the SMT7xx
series can support two modules.
5.5 Front Panel RJ45 Connector (Ethernet)
A single RJ45 connector provides a 10/100/1000 Ethernet interface. The RJ45
connects directly to a Marvell 88E1116 PHY, which is interfaced to the FPGA.
5.6 Front Panel SATA Connectors
Two SATA-style connectors are provided on the front panel. Each connector carries
a single FPGA serial interface. As standard, these interfaces do NOT provide SATA
connectivity.
5.7 RSL
The LXT/SXT series devices from Xilinx provide up to 16 high-speed (>3Gbps) serial
links.
The SMT784 connects 8 lanes to the PXIe connectors, 4 lanes to an RSL connector,
two lanes to Fibre Modules, and two lanes to front panel SATA connectors.
For FPGAs with only 12 GTPs (high speed serial ports), no lanes are available on the
RSL connector.
The default firmware provides Host access straight to the RSL connectors through
the RSL X-Link interface